function setOpacityOnLoad() {
	var divs = document.getElementsByTagName('div');
	for (var i=0;i<divs.length;i++) {
		if (divs[i].className == 'bandiera') {
			setOpacity(document.getElementById(divs[i].getAttribute('id')),50);
		}
	}
}
function setOpacity(obj,opacity){
opacity=(opacity==100) ? 99.999 : opacity;
// IE/Win
obj.style.filter = "alpha(opacity:"+opacity+")";
// Safari<1.2, Konqueror
obj.style.KHTMLOpacity = opacity/100;
// Older Mozilla and Firefox
obj.style.MozOpacity = opacity/100;
// Safari 1.2, newer Firefox and Mozilla, CSS3
obj.style.opacity = opacity/100;
}


function fadeIn(objId,opacity){
if(!document.getElementById) return;
obj = document.getElementById(objId);
if(opacity <= 100){
  setOpacity(obj,opacity);
  opacity += 10;
  window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 50);
  }
}
function fadeOut(objId,opacity){
if(!document.getElementById) return;
obj = document.getElementById(objId);
if(opacity >= 50){
  setOpacity(obj,opacity);
  opacity -= 10;
  window.setTimeout("fadeOut('"+objId+"',"+opacity+")", 50);
  }
}